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Finding the Fourth Proportional to 6,471.03, 8,919.87 and 5,412.27

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Solution

The fourth proportional to 6,471.03, 8,919.87 and 5,412.27 is: 7,460.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.03 : 8,919.87 = 5,412.27 : x
  2. Step 2: Convert to fraction form
    6,471.03/8,919.87 = 5,412.27/x
  3. Step 3: Cross multiply
    6,471.03x = 8,919.87 × 5,412.27
  4. Step 4: Simplify right side
    6,471.03x = 48,276,744.80
  5. Step 5: Solve for x
    x = 48,276,744.80/6,471.03
  6. Step 6: Final answer
    x = 7,460.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.